CA1032856A - Hydraulic system - Google Patents

Hydraulic system

Info

Publication number
CA1032856A
CA1032856A CA235,752A CA235752A CA1032856A CA 1032856 A CA1032856 A CA 1032856A CA 235752 A CA235752 A CA 235752A CA 1032856 A CA1032856 A CA 1032856A
Authority
CA
Canada
Prior art keywords
hydraulic system
hydraulic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA235,752A
Other languages
French (fr)
Inventor
Edward H. Fletcher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deere and Co
Original Assignee
Deere and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deere and Co filed Critical Deere and Co
Application granted granted Critical
Publication of CA1032856A publication Critical patent/CA1032856A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/004—Fluid pressure supply failure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/002—Electrical failure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/03—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type with electrical control means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
CA235,752A 1975-01-22 1975-09-18 Hydraulic system Expired CA1032856A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/542,893 US3943824A (en) 1975-01-22 1975-01-22 Hydraulic system

Publications (1)

Publication Number Publication Date
CA1032856A true CA1032856A (en) 1978-06-13

Family

ID=24165734

Family Applications (1)

Application Number Title Priority Date Filing Date
CA235,752A Expired CA1032856A (en) 1975-01-22 1975-09-18 Hydraulic system

Country Status (2)

Country Link
US (1) US3943824A (en)
CA (1) CA1032856A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091715A (en) * 1975-05-30 1978-05-30 Deggendorfer Werft Und Eisenbau G.M.B.H. Hydraulic system for opening and closing hopper barges
US4084644A (en) * 1976-09-17 1978-04-18 Caterpillar Tractor Co. Motor grader or the like with hydraulic control system for circle gear
FI803795L (en) * 1980-10-02 1982-04-03 Robert W Brundage MEDICAL INSTRUCTIONS
CA1180639A (en) * 1980-11-12 1985-01-08 Robert W. Brundage Magnetically controlled fluid pressure device
WO1984003916A1 (en) * 1983-03-28 1984-10-11 Rexa Corp Control valve and hydraulic system employing same
US4715180A (en) * 1984-01-13 1987-12-29 Dynamic Hydraulic Systems, Inc. Hydraulic lift mechanism
EP0224623A1 (en) * 1985-11-21 1987-06-10 Hr Textron Inc. Servovalve with integrated failure monitoring
US4770083A (en) * 1987-02-19 1988-09-13 Deere & Company Independently actuated pressure relief system
US4736811A (en) * 1987-05-22 1988-04-12 Caterpillar Inc. Steering control system
EP0574604B1 (en) * 1992-06-16 1996-10-02 Siemens Aktiengesellschaft Electro-hydraulic adjusting device, in particular for the rear wheel steering of a motor vehicle
DE4311486A1 (en) * 1993-04-07 1994-10-13 Linde Ag Process for the electro-hydraulic control of adjustable hydraulic components and control device provided therefor
US5499503A (en) * 1994-09-22 1996-03-19 Iowa Mold Tooling Company, Inc. Hydraulic swing circuit
US5489005A (en) * 1994-11-23 1996-02-06 Caterpillar Inc. Electro-hydraulic steering system
US5570991A (en) * 1995-03-09 1996-11-05 Clark Equipment Company Swing lock for a backhoe
DE29613138U1 (en) * 1996-07-29 1997-09-04 Siemens AG, 80333 München Pneumatic control drive and blocking valve for such a pneumatic control drive
US5738142A (en) * 1996-08-09 1998-04-14 Case Corporation Pressure holding directional control valve
US20100090143A1 (en) * 2008-08-28 2010-04-15 Kot Norbert J Dual locking valve
US8517335B2 (en) 2010-05-21 2013-08-27 Sti Srl Fail-freeze device for positioner
US8406966B2 (en) 2011-01-13 2013-03-26 Husco International, Inc. Draft control method for operating an earth moving machine
US8925439B2 (en) 2011-01-13 2015-01-06 Husco International, Inc. Valve control valve circuit for operating a single acting hydraulic cylinder
EP2541074B1 (en) * 2011-06-28 2019-06-19 STI Srl Fail-freeze device for positioner
US9611871B2 (en) 2013-09-13 2017-04-04 Norbert J. Kot Pneumatic valve assembly and method
GB2624254A (en) * 2022-11-14 2024-05-15 Brian Dean Michael Hydraulic systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618121A (en) * 1949-11-07 1952-11-18 Hpm Dev Corp Locking control circuit for fluid-actuated motors
US2770098A (en) * 1952-03-12 1956-11-13 Bosch Gmbh Robert Hydraulic servo-motors
US3826174A (en) * 1971-03-03 1974-07-30 Bendix Corp Quadruple redundant closed loop electro-hydraulic servo system

Also Published As

Publication number Publication date
US3943824A (en) 1976-03-16

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